crashpad client for windows

client/crashpad_client.h

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 31 matching lines @@
   //! This method does not actually direct any crashes to the Crashpad handler,
   //! because there may be alternative ways to use an existing Crashpad handler
   //! without having to start one. To begin directing crashes to the handler,
   //! started by this method, call UseHandler() after this method returns
   //! successfully.
   //!
   //! On Mac OS X, this method starts a Crashpad handler and obtains a Mach
   //! send right corresponding to a receive right held by the handler process.
   //! The handler process runs an exception server on this port.
   //!
+  //! On Windows, SetHandler() is normally used instead since the handler is
+  //! started by other means.
+  //!
   //! \param[in] handler The path to a Crashpad handler executable.
   //! \param[in] database The path to a Crashpad database. The handler will be
   //!     started with this path as its `--database` argument.
   //! \param[in] url The URL of an upload server. The handler will be started
   //!     with this URL as its `--url` argument.
   //! \param[in] annotations Process annotations to set in each crash report.
   //!     The handler will be started with an `--annotation` argument for each
   //!     element in this map.
   //! \param[in] arguments Additional arguments to pass to the Crashpad handler.
   //!     Arguments passed in other parameters and arguments required to perform
   //!     the handshake are the responsibility of this method, and must not be
   //!     specified in this parameter.
   //!
   //! \return `true` on success, `false` on failure with a message logged.
   bool StartHandler(const base::FilePath& handler,
                     const base::FilePath& database,
                     const std::string& url,
                     const std::map<std::string, std::string>& annotations,
                     const std::vector<std::string>& arguments);
 
+#if defined(OS_WIN) || DOXYGEN
+  //! \brief Sets the IPC port of a presumably-running Crashpad handler process
+  //!     which was started with StartHandler() or by other compatible means
+  //!     and does an IPC message exchange to register this process with the
+  //!     handler. However, just like StartHandler(), crashes are not serviced
+  //!     until UseHandler() is called.
+  //!
+  //! The IPC port name (somehow) encodes enough information so that
+  //! registration is done with a crash handler using the appropriate database
+  //! and upload server.
+  //!
+  //! \param[in] ipc_port The full name of the crash handler IPC port.
+  //!
+  //! \return `true` on success and `false` on failure.
+  bool SetHandler(const std::string& ipc_port);
+#endif
+
   //! \brief Configures the process to direct its crashes to a Crashpad handler.
   //!
-  //! The Crashpad handler must previously have been started by StartHandler().
+  //! The Crashpad handler must previously have been started by StartHandler()
+  //! or configured by SetHandler().
   //!
   //! On Mac OS X, this method sets the task’s exception port for `EXC_CRASH`,
   //! `EXC_RESOURCE`, and `EXC_GUARD` exceptions to the Mach send right obtained
   //! by StartHandler(). The handler will be installed with behavior
   //! `EXCEPTION_STATE_IDENTITY | MACH_EXCEPTION_CODES` and thread state flavor
   //! `MACHINE_THREAD_STATE`. Exception ports are inherited, so a Crashpad
   //! handler chosen by UseHandler() will remain the handler for any child
   //! processes created after UseHandler() is called. Child processes do not
   //! need to call StartHandler() or UseHandler() or be aware of Crashpad in any
   //! way. The Crashpad handler will receive crashes from child processes that
   //! have inherited it as their exception handler even after the process that
   //! called StartHandler() exits.
   //!
+  //! On Windows, this method sets the unhandled exception handler to a local
+  //! function that when reached will "signal and wait" for the crash handler
+  //! process to create the dump.
+  //!
   //! \return `true` on success, `false` on failure with a message logged.
   bool UseHandler();
 
  private:
 #if defined(OS_MACOSX)
   base::mac::ScopedMachSendRight exception_port_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(CrashpadClient);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_CLIENT_CRASHPAD_CLIENT_H_